Claws Mail news reader does not sort by date properly when posts have following uncommon, but legal according to RFC 1036, date formats: Wdy, DD Mon YY HH:MM:SS TIMEZONE e.g. Date: Sun, 04 Feb 24 12:39:24 GMT User-Agent: Newsgrouper 0.3 Wdy, DD Mon YY HH:MM:SS +TZTZ e.g. Date: Fri, 06 Oct 23 15:40:16 +0000 User-Agent: Nemo/0.999a Wdy, DD Mon YYYY HH:MM:SS +TZTZ (TIMEZONE) e.g. Date: 11 Mar 2024 11:10:15 +0000 (GMT) User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (Linux/5.10.0-22-amd64 (x86_64))